Granted Patent
Utility
US 4,787,889 · App. 07/119,268
Rigid, transparent fluid conduit for surgical irrigation
Inventors:
Dennis L. Steppe, Stephen W. Haines
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Nov 9, 1987
Inventors
Dennis L. Steppe
Stephen W. Haines
Assignee (at issue)
Coopervision, Inc
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.